import Vue from 'vue'
import App from './App.vue'
Vue.config.productionTip = false

Vue.prototype.x = 999

let vm  = new Vue({
  el: '#app',
  render: h => h(App)
})

// let VueComponent = Vue.extend()
// console.log(VueComponent.prototype.__proto__ === Vue.prototype)

console.log(vm.x)